Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December corresponds with a shift in temperature, down from a chilly 49.1°F (9.5°C) in November to a wintry 39°F (3.9°C). Sherborn cools down to an average low-temperature of 28°F (-2.2°C) throughout the month of December.Humidity
The average relative humidity in December is 77%.Rainfall
In December, in Sherborn, the rain falls for 10.1 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Sherborn, there are 157.5 rainfall days, and 29.53" (750mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sherborn are January through May, October through December. In Sherborn, during December, snow falls for 4.7 days and regularly aggregates up to 3.62" (92mm) of snow. In Sherborn, during the entire year, snow falls for 28.8 days and aggregates up to 17.32" (440mm) of snow.Daylight
The month with the shortest days in Sherborn is December, with an average of 9h and 12min of daylight.On the first day of December in Sherborn, sunrise is at 6:55 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:23 pm EST.
Sunshine
In Sherborn, the average sunshine in December is 5h.UV index
The months with the lowest UV index in Sherborn are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Sherborn?
What is the average humidity in December in Sherborn?
How many days does it rain in December in Sherborn?
How much does it snow in Sherborn in December?
What is the month with the shortest days in Sherborn?
What is the average length of the day in December in Sherborn?
When are sunrise and sunset in December in Sherborn?
How long on average sun shines in December in Sherborn?
What are the months with the lowest UV index in Sherborn?
What is the UV index reading in December in Sherborn?
Average temperature in December
Sherborn, MA
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Sherborn, MA
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Sherborn, MA
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Sherborn, MA
- Average humidity in December: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
Sherborn, MA
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is April (2.87").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Sherborn, MA
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
Sherborn, MA
- Average snowfall in December: 3.62"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sherborn, MA
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sherborn, MA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Sherborn, MA
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Sherborn, MA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Sherborn, MA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Sherborn, MA
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are February, August and September (5mi).
Sherborn, Massachusetts, USA
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